I'd rather watch it alone frankly. I don't like watching shows with other people, doesn't matter if they're completely oblivious to anime or otaku gods. I just need peace and quiet to concentrate on my thing.

But if I'm in casual watching mode (Toonami, random episodes on TV, re-watching ...), I can watch it with someone. Anime movies are also an exception.

Alone. I can't get into it when there are other people around. My favorite anime are the emotionally charged ones, so I don't want to be seen reacting to them, and I definitely don't want anyone talking and ruining the mood for me.

I will gladly re-watch something with friends though, but in the case of said emotional shows, I will recommend they watch them alone first for the full experience.

I would watch it with someone if I could find anybody in my surrounding area that enjoyed anime. I literally know zero people who enjoy anime and when I bring it up it's, "Oh, I liked spirited away!". Me too,... me too, if I ever found a woman my own age who was a nerd for Doctor Who and Anime, I'd marry her.

I'd rather watch it alone. When I watch an anime, I get immersed into to it and my full attention goes into it. Plus, the experience is kind of personalized Everyone has their own experiences, thoughts, opinions, and feelings that they go through when they watch a show. It'll be different from your nest friend, who may have watched the same show. Plus, I want to laugh, cry, smile, and feel despair on my own and with the show when I watch it. You get the full experience that way, I feel.

I'm not opposed to watching with others, but no-one I know really has any interest. Also, there's some stuff where I don't know how it's going to go, and it might turn into something like Bokutatsu Tenshi Dokuro-Chan and then I'll never be able to speak to that person again...